mirror of
https://github.com/freebsd/freebsd-src
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555dff94cc
group file. Because of the way the group sorting works while printing out the new file it's not possible at this time to restore comments in other locations, but at least they won't just disappear altogether.
1403 lines
34 KiB
Perl
1403 lines
34 KiB
Perl
#!/usr/bin/perl
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#
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# Copyright (c) 1995-1996 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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# read variables
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sub variables {
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$verbose = 1; # verbose = [0-2]
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$defaultpasswd = "yes"; # use password for new users
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$dotdir = "/usr/share/skel"; # copy dotfiles from this dir
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$dotdir_bak = $dotdir;
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$send_message = "/etc/adduser.message"; # send message to new user
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$send_message_bak = '/etc/adduser.message';
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$config = "/etc/adduser.conf"; # config file for adduser
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$config_read = 1; # read config file
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$logfile = "/var/log/adduser"; # logfile
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$home = "/home"; # default HOME
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$etc_shells = "/etc/shells";
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$etc_passwd = "/etc/master.passwd";
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$group = "/etc/group";
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$pwd_mkdb = "pwd_mkdb -p"; # program for building passwd database
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# List of directories where shells located
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@path = ('/bin', '/usr/bin', '/usr/local/bin');
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# common shells, first element has higher priority
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@shellpref = ('csh', 'sh', 'bash', 'tcsh', 'ksh');
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$defaultshell = 'sh'; # defaultshell if not empty
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$group_uniq = 'USER';
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$defaultgroup = $group_uniq;# login groupname, $group_uniq means username
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$defaultclass = '';
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$uid_start = 1000; # new users get this uid
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$uid_end = 32000; # max. uid
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# global variables
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# passwd
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$username = ''; # $username{username} = uid
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$uid = ''; # $uid{uid} = username
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$pwgid = ''; # $pwgid{pwgid} = username; gid from passwd db
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$password = ''; # password for new users
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# group
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$groupname =''; # $groupname{groupname} = gid
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$groupmembers = ''; # $groupmembers{gid} = members of group/kommalist
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$gid = ''; # $gid{gid} = groupname; gid form group db
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@group_comments; # Comments in the group file
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# shell
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$shell = ''; # $shell{`basename sh`} = sh
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umask 022; # don't give login group write access
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$ENV{'PATH'} = "/sbin:/bin:/usr/sbin:/usr/bin";
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@passwd_backup = '';
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@group_backup = '';
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@message_buffer = '';
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@user_variable_list = ''; # user variables in /etc/adduser.conf
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$do_not_delete = '## DO NOT DELETE THIS LINE!';
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}
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# read shell database, see also: shells(5)
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sub shells_read {
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local($sh);
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local($err) = 0;
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print "Check $etc_shells\n" if $verbose;
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open(S, $etc_shells) || die "$etc_shells:$!\n";
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while(<S>) {
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if (/^\s*\//) {
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s/^\s*//; s/\s+.*//; # chop
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$sh = $_;
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if (-x $sh) {
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$shell{&basename($sh)} = $sh;
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} else {
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warn "Shell: $sh not executable!\n";
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$err++;
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}
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}
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}
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# Allow /nonexistent and /bin/date as a valid shell for system utils
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push(@list, "/nonexistent");
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push(@shellpref, "no") if !grep(/^no$/, @shellpref);
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$shell{"no"} = "/nonexistent";
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push(@list, "/bin/date");
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push(@shellpref, "date") if !grep(/^date$/, @shellpref);
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$shell{"date"} = "/bin/date";
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return $err;
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}
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# add new shells if possible
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sub shells_add {
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local($sh,$dir,@list);
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return 1 unless $verbose;
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foreach $sh (@shellpref) {
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# all known shells
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if (!$shell{$sh}) {
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# shell $sh is not defined as login shell
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foreach $dir (@path) {
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if (-x "$dir/$sh") {
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# found shell
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if (&confirm_yn("Found shell: $dir/$sh. Add to $etc_shells?", "yes")) {
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push(@list, "$dir/$sh");
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push(@shellpref, "$sh");
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$shell{&basename("$dir/$sh")} = "$dir/$sh";
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$changes++;
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}
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}
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}
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}
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}
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&append_file($etc_shells, @list) if $#list >= 0;
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}
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# choose your favourite shell and return the shell
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sub shell_default {
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local($e,$i,$new_shell);
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local($sh);
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$sh = &shell_default_valid($defaultshell);
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return $sh unless $verbose;
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$new_shell = &confirm_list("Enter your default shell:", 0,
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$sh, sort(keys %shell));
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print "Your default shell is: $new_shell -> $shell{$new_shell}\n";
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$changes++ if $new_shell ne $sh;
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return $new_shell;
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}
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sub shell_default_valid {
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local($sh) = @_;
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local($s,$e);
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return $sh if $shell{$sh};
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foreach $e (@shellpref) {
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$s = $e;
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last if defined($shell{$s});
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}
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$s = "sh" unless $s;
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warn "Shell ``$sh'' is undefined, use ``$s''\n";
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return $s;
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}
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# return default home partition (e.g. "/home")
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# create base directory if nesseccary
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sub home_partition {
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local($home) = @_;
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$home = &stripdir($home);
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local($h) = $home;
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return $h if !$verbose && $h eq &home_partition_valid($h);
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while(1) {
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$h = &confirm_list("Enter your default HOME partition:", 1, $home, "");
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$h = &stripdir($h);
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last if $h eq &home_partition_valid($h);
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}
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$changes++ if $h ne $home;
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return $h;
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}
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sub home_partition_valid {
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local($h) = @_;
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$h = &stripdir($h);
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# all right (I hope)
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return $h if $h =~ "^/" && -e $h && -w $h && (-d $h || -l $h);
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# Errors or todo
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if ($h !~ "^/") {
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warn "Please use absolute path for home: ``$h''.\a\n";
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return 0;
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}
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if (-e $h) {
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warn "$h exists, but is not a directory or symlink!\n"
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unless -d $h || -l $h;
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warn "$h is not writable!\n"
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unless -w $h;
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return 0;
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} else {
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# create home partition
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return $h if &mkdir_home($h);
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}
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return 0;
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}
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# check for valid passwddb
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sub passwd_check {
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system("$pwd_mkdb -C $etc_passwd");
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die "\nInvalid $etc_passwd - cannot add any users!\n" if $?;
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}
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# read /etc/passwd
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sub passwd_read {
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local($p_username, $pw, $p_uid, $p_gid, $sh, %shlist);
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print "Check $etc_passwd\n" if $verbose;
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open(P, "$etc_passwd") || die "$passwd: $!\n";
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while(<P>) {
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chop;
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push(@passwd_backup, $_);
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# ignore comments
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next if /^\s*$/;
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next if /^\s*#/;
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($p_username, $pw, $p_uid, $p_gid, $sh) = (split(/:/, $_))[0..3,9];
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print "$p_username already exists with uid: $username{$p_username}!\n"
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if $username{$p_username} && $verbose;
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$username{$p_username} = $p_uid;
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print "User $p_username: uid $p_uid exists twice: $uid{$p_uid}\n"
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if $uid{$p_uid} && $verbose && $p_uid; # don't warn for uid 0
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print "User $p_username: illegal shell: ``$sh''\n"
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if ($verbose && $sh &&
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!$shell{&basename($sh)} &&
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$p_username !~ /^(news|xten|bin|nobody|uucp)$/ &&
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$sh !~ /\/(pppd|sliplogin|nologin|nonexistent)$/);
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$uid{$p_uid} = $p_username;
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$pwgid{$p_gid} = $p_username;
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}
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close P;
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}
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# read /etc/group
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sub group_read {
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local($g_groupname,$pw,$g_gid, $memb);
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print "Check $group\n" if $verbose;
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open(G, "$group") || die "$group: $!\n";
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while(<G>) {
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chop;
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push(@group_backup, $_);
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# Ignore empty lines
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next if /^\s*$/;
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# Save comments to restore later
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if (/^\s*\#/) {
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push(@group_comments, $_);
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next;
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}
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($g_groupname, $pw, $g_gid, $memb) = (split(/:/, $_))[0..3];
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$groupmembers{$g_gid} = $memb;
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warn "Groupname exists twice: $g_groupname:$g_gid -> $g_groupname:$groupname{$g_groupname}\n"
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if $groupname{$g_groupname} && $verbose;
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$groupname{$g_groupname} = $g_gid;
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warn "Groupid exists twice: $g_groupname:$g_gid -> $gid{$g_gid}:$g_gid\n"
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if $gid{$g_gid} && $verbose;
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$gid{$g_gid} = $g_groupname;
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}
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close G;
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}
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# check gids /etc/passwd <-> /etc/group
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sub group_check {
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local($c_gid, $c_username, @list);
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foreach $c_gid (keys %pwgid) {
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if (!$gid{$c_gid}) {
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$c_username = $pwgid{$c_gid};
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warn "User ``$c_username'' has gid $c_gid but a group with this " .
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"gid does not exist.\n" if $verbose;
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}
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}
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}
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#
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# main loop for creating new users
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#
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# return username
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sub new_users_name {
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local($name);
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while(1) {
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$name = &confirm_list("Enter username", 1, "a-z0-9_-", "");
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if (length($name) > 16) {
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warn "Username is longer than 16 chars\a\n";
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next;
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}
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last if (&new_users_name_valid($name) eq $name);
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}
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return $name;
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}
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sub new_users_name_valid {
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local($name) = @_;
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if ($name !~ /^[a-z0-9_][a-z0-9_\-]*$/ || $name eq "a-z0-9_-") {
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warn "Wrong username. " .
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"Please use only lowercase characters or digits\a\n";
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return 0;
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} elsif ($username{$name}) {
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warn "Username ``$name'' already exists!\a\n"; return 0;
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}
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return $name;
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}
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# return full name
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sub new_users_fullname {
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local($name) = @_;
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local($fullname);
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while(1) {
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$fullname = &confirm_list("Enter full name", 1, "", "");
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last if $fullname eq &new_users_fullname_valid($fullname);
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}
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$fullname = $name unless $fullname;
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return $fullname;
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}
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sub new_users_fullname_valid {
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local($fullname) = @_;
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return $fullname if $fullname !~ /:/;
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warn "``:'' is not allowed!\a\n";
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return 0;
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}
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# return shell (full path) for user
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sub new_users_shell {
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local($sh);
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$sh = &confirm_list("Enter shell", 0, $defaultshell, keys %shell);
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return $shell{$sh};
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}
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# return home (full path) for user
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# Note that the home path defaults to $home/$name for batch
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sub new_users_home {
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local($name) = @_;
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local($userhome);
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while(1) {
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$userhome = &confirm_list("Enter home directory (full path)", 1, "$home/$name", "");
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last if $userhome =~ /^\//;
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warn qq{Home directory "$userhome" is not a full path\a\n};
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}
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return $userhome;
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}
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# return free uid and gid
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sub new_users_id {
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local($name) = @_;
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local($u_id, $g_id) = &next_id($name);
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local($u_id_tmp, $e);
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while(1) {
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$u_id_tmp = &confirm_list("Uid", 1, $u_id, "");
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last if $u_id_tmp =~ /^[0-9]+$/ && $u_id_tmp <= $uid_end &&
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! $uid{$u_id_tmp};
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if ($uid{$u_id_tmp}) {
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warn "Uid ``$u_id_tmp'' in use!\a\n";
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$uid_start = $u_id_tmp;
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($u_id, $g_id) = &next_id($name);
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next;
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} else {
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warn "Wrong uid.\a\n";
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}
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}
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# use calculated uid
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# return ($u_id_tmp, $g_id) if $u_id_tmp eq $u_id;
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# recalculate gid
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$uid_start = $u_id_tmp;
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return &next_id($name);
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}
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# return login class for user
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sub new_users_class {
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local($def) = @_;
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local($class);
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$class = &confirm_list("Enter login class:", 1, $def, ($def, "default"));
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$class = "" if $class eq "default";
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return $class;
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}
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# add user to group
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sub add_group {
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local($gid, $name) = @_;
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return 0 if
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$groupmembers{$gid} =~ /^(.+,)?$name(,.+)?$/;
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$groupmembers_bak{$gid} = $groupmembers{$gid};
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$groupmembers{$gid} .= "," if $groupmembers{$gid};
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$groupmembers{$gid} .= "$name";
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return $name;
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}
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# return login group
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sub new_users_grplogin {
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local($name, $defaultgroup, $new_users_ok) = @_;
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local($group_login, $group);
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$group = $name;
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$group = $defaultgroup if $defaultgroup ne $group_uniq;
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if ($new_users_ok) {
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# clean up backup
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foreach $e (keys %groupmembers_bak) { delete $groupmembers_bak{$e}; }
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} else {
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# restore old groupmembers, user was not accept
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foreach $e (keys %groupmembers_bak) {
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$groupmembers{$e} = $groupmembers_bak{$e};
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}
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}
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while(1) {
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$group_login = &confirm_list("Login group", 1, $group,
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($name, $group));
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last if $group_login eq $group;
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last if $group_login eq $name;
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last if defined $groupname{$group_login};
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if ($group_login eq $group_uniq) {
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$group_login = $name; last;
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}
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if (defined $gid{$group_login}) {
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# convert numeric groupname (gid) to groupname
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$group_login = $gid{$group_login};
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last;
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}
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warn "Group does not exist!\a\n";
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}
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#if (defined($groupname{$group_login})) {
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# &add_group($groupname{$group_login}, $name);
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#}
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return ($group_login, $group_uniq) if $group_login eq $name;
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return ($group_login, $group_login);
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}
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# return other groups (string)
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sub new_users_groups {
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local($name, $other_groups) = @_;
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local($string) =
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"Login group is ``$group_login''. Invite $name into other groups:";
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local($e, $flag);
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local($new_groups,$groups);
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$other_groups = "no" unless $other_groups;
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while(1) {
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$groups = &confirm_list($string, 1, $other_groups,
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("no", $other_groups, "guest"));
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# no other groups
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return "" if $groups eq "no";
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($flag, $new_groups) = &new_users_groups_valid($groups);
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last unless $flag;
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}
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$new_groups =~ s/\s*$//;
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return $new_groups;
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}
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sub new_users_groups_valid {
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local($groups) = @_;
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local($e, $new_groups);
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local($flag) = 0;
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|
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foreach $e (split(/[,\s]+/, $groups)) {
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# convert numbers to groupname
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if ($e =~ /^[0-9]+$/ && $gid{$e}) {
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$e = $gid{$e};
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}
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if (defined($groupname{$e})) {
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if ($e eq $group_login) {
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# do not add user to a group if this group
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# is also the login group.
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} elsif (&add_group($groupname{$e}, $name)) {
|
|
$new_groups .= "$e ";
|
|
} else {
|
|
warn "$name is already member of group ``$e''\n";
|
|
}
|
|
} else {
|
|
warn "Group ``$e'' does not exist\a\n"; $flag++;
|
|
}
|
|
}
|
|
return ($flag, $new_groups);
|
|
}
|
|
|
|
# your last change
|
|
sub new_users_ok {
|
|
|
|
print <<EOF;
|
|
|
|
Name: $name
|
|
Password: ****
|
|
Fullname: $fullname
|
|
Uid: $u_id
|
|
Gid: $g_id ($group_login)
|
|
Class: $class
|
|
Groups: $group_login $new_groups
|
|
HOME: $userhome
|
|
Shell: $sh
|
|
EOF
|
|
|
|
return &confirm_yn("OK?", "yes");
|
|
}
|
|
|
|
# make password database
|
|
sub new_users_pwdmkdb {
|
|
local($last) = @_;
|
|
|
|
system("$pwd_mkdb $etc_passwd");
|
|
if ($?) {
|
|
warn "$last\n";
|
|
warn "``$pwd_mkdb'' failed\n";
|
|
exit($? >> 8);
|
|
}
|
|
}
|
|
|
|
# update group database
|
|
sub new_users_group_update {
|
|
local($e, @a);
|
|
|
|
# Add *new* group
|
|
if (!defined($groupname{$group_login}) &&
|
|
!defined($gid{$groupname{$group_login}})) {
|
|
push(@group_backup, "$group_login:*:$g_id:");
|
|
$groupname{$group_login} = $g_id;
|
|
$gid{$g_id} = $group_login;
|
|
# $groupmembers{$g_id} = $group_login;
|
|
}
|
|
|
|
if ($new_groups || defined($groupname{$group_login}) ||
|
|
defined($gid{$groupname{$group_login}}) &&
|
|
$gid{$groupname{$group_login}} ne "+") {
|
|
# new user is member of some groups
|
|
# new login group is already in name space
|
|
rename($group, "$group.bak");
|
|
#warn "$group_login $groupname{$group_login} $groupmembers{$groupname{$group_login}}\n";
|
|
|
|
# Restore comments from the top of the group file
|
|
@a = @group_comments;
|
|
foreach $e (sort {$a <=> $b} (keys %gid)) {
|
|
push(@a, "$gid{$e}:*:$e:$groupmembers{$e}");
|
|
}
|
|
&append_file($group, @a);
|
|
} else {
|
|
&append_file($group, "$group_login:*:$g_id:");
|
|
}
|
|
|
|
}
|
|
|
|
sub new_users_passwd_update {
|
|
# update passwd/group variables
|
|
push(@passwd_backup, $new_entry);
|
|
$username{$name} = $u_id;
|
|
$uid{$u_id} = $name;
|
|
$pwgid{$g_id} = $name;
|
|
}
|
|
|
|
# send message to new user
|
|
sub new_users_sendmessage {
|
|
return 1 if $send_message eq "no";
|
|
|
|
local($cc) =
|
|
&confirm_list("Send message to ``$name'' and:",
|
|
1, "no", ("root", "second_mail_address", "no"));
|
|
local($e);
|
|
$cc = "" if $cc eq "no";
|
|
|
|
foreach $e (@message_buffer) {
|
|
print eval "\"$e\"";
|
|
}
|
|
print "\n";
|
|
|
|
local(@message_buffer_append) = ();
|
|
if (!&confirm_yn("Add anything to default message", "no")) {
|
|
print "Use ``.'' or ^D alone on a line to finish your message.\n";
|
|
push(@message_buffer_append, "\n");
|
|
while($read = <STDIN>) {
|
|
last if $read eq "\.\n";
|
|
push(@message_buffer_append, $read);
|
|
}
|
|
}
|
|
|
|
&sendmessage("$name $cc", (@message_buffer, @message_buffer_append))
|
|
if (&confirm_yn("Send message", "yes"));
|
|
}
|
|
|
|
sub sendmessage {
|
|
local($to, @message) = @_;
|
|
local($e);
|
|
|
|
if (!open(M, "| mail -s Welcome $to")) {
|
|
warn "Cannot send mail to: $to!\n";
|
|
return 0;
|
|
} else {
|
|
foreach $e (@message) {
|
|
print M eval "\"$e\"";
|
|
}
|
|
close M;
|
|
}
|
|
}
|
|
|
|
|
|
sub new_users_password {
|
|
|
|
# empty password
|
|
return "" if $defaultpasswd ne "yes";
|
|
|
|
local($password);
|
|
|
|
while(1) {
|
|
system("stty -echo");
|
|
$password = &confirm_list("Enter password", 1, "", "");
|
|
system("stty echo");
|
|
print "\n";
|
|
if ($password ne "") {
|
|
system("stty -echo");
|
|
$newpass = &confirm_list("Enter password again", 1, "", "");
|
|
system("stty echo");
|
|
print "\n";
|
|
last if $password eq $newpass;
|
|
print "They didn't match, please try again\n";
|
|
}
|
|
elsif (&confirm_yn("Use an empty password?", "yes")) {
|
|
last;
|
|
}
|
|
}
|
|
|
|
return $password;
|
|
}
|
|
|
|
|
|
sub new_users {
|
|
|
|
print "\n" if $verbose;
|
|
print "Ok, let's go.\n" .
|
|
"Don't worry about mistakes. I will give you the chance later to " .
|
|
"correct any input.\n" if $verbose;
|
|
|
|
# name: Username
|
|
# fullname: Full name
|
|
# sh: shell
|
|
# userhome: home path for user
|
|
# u_id: user id
|
|
# g_id: group id
|
|
# class: login class
|
|
# group_login: groupname of g_id
|
|
# new_groups: some other groups
|
|
local($name, $group_login, $fullname, $sh, $u_id, $g_id, $class, $new_groups);
|
|
local($userhome);
|
|
local($groupmembers_bak, $cryptpwd);
|
|
local($new_users_ok) = 1;
|
|
|
|
|
|
$new_groups = "no";
|
|
$new_groups = "no" unless $groupname{$new_groups};
|
|
|
|
while(1) {
|
|
$name = &new_users_name;
|
|
$fullname = &new_users_fullname($name);
|
|
$sh = &new_users_shell;
|
|
$userhome = &new_users_home($name);
|
|
($u_id, $g_id) = &new_users_id($name);
|
|
$class = &new_users_class($defaultclass);
|
|
($group_login, $defaultgroup) =
|
|
&new_users_grplogin($name, $defaultgroup, $new_users_ok);
|
|
# do not use uniq username and login group
|
|
$g_id = $groupname{$group_login} if (defined($groupname{$group_login}));
|
|
|
|
$new_groups = &new_users_groups($name, $new_groups);
|
|
$password = &new_users_password;
|
|
|
|
|
|
if (&new_users_ok) {
|
|
$new_users_ok = 1;
|
|
|
|
$cryptpwd = "";
|
|
$cryptpwd = crypt($password, &salt) if $password ne "";
|
|
# obscure perl bug
|
|
$new_entry = "$name\:" . "$cryptpwd" .
|
|
"\:$u_id\:$g_id\:$class\:0:0:$fullname:$userhome:$sh";
|
|
&append_file($etc_passwd, "$new_entry");
|
|
&new_users_pwdmkdb("$new_entry");
|
|
&new_users_group_update;
|
|
&new_users_passwd_update; print "Added user ``$name''\n";
|
|
&new_users_sendmessage;
|
|
&adduser_log("$name:*:$u_id:$g_id($group_login):$fullname");
|
|
&home_create($userhome, $name, $group_login);
|
|
} else {
|
|
$new_users_ok = 0;
|
|
}
|
|
if (!&confirm_yn("Add another user?", "yes")) {
|
|
print "Goodbye!\n" if $verbose;
|
|
last;
|
|
}
|
|
print "\n" if !$verbose;
|
|
}
|
|
}
|
|
|
|
# ask for password usage
|
|
sub password_default {
|
|
local($p) = $defaultpasswd;
|
|
if ($verbose) {
|
|
$p = &confirm_yn("Use passwords", $defaultpasswd);
|
|
$changes++ unless $p;
|
|
}
|
|
return "yes" if (($defaultpasswd eq "yes" && $p) ||
|
|
($defaultpasswd eq "no" && !$p));
|
|
return "no"; # otherwise
|
|
}
|
|
|
|
# misc
|
|
sub check_root {
|
|
die "You are not root!\n" if $< && !$test;
|
|
}
|
|
|
|
sub usage {
|
|
warn <<USAGE;
|
|
usage: adduser
|
|
[-check_only]
|
|
[-class login_class]
|
|
[-config_create]
|
|
[-dotdir dotdir]
|
|
[-group login_group]
|
|
[-h|-help]
|
|
[-home home]
|
|
[-message message_file]
|
|
[-noconfig]
|
|
[-shell shell]
|
|
[-s|-silent|-q|-quiet]
|
|
[-uid uid_start]
|
|
[-v|-verbose]
|
|
|
|
home=$home shell=$defaultshell dotdir=$dotdir login_group=$defaultgroup
|
|
login_class=$defaultclass message_file=$send_message uid_start=$uid_start
|
|
USAGE
|
|
exit 1;
|
|
}
|
|
|
|
# uniq(1)
|
|
sub uniq {
|
|
local(@list) = @_;
|
|
local($e, $last, @array);
|
|
|
|
foreach $e (sort @list) {
|
|
push(@array, $e) unless $e eq $last;
|
|
$last = $e;
|
|
}
|
|
return @array;
|
|
}
|
|
|
|
# see /usr/src/usr.bin/passwd/local_passwd.c or librcypt, crypt(3)
|
|
sub salt {
|
|
local($salt); # initialization
|
|
local($i, $rand);
|
|
local(@itoa64) = ( '0' .. '9', 'a' .. 'z', 'A' .. 'Z' ); # 0 .. 63
|
|
|
|
warn "calculate salt\n" if $verbose > 1;
|
|
# to64
|
|
for ($i = 0; $i < 8; $i++) {
|
|
srand(time + $rand + $$);
|
|
$rand = rand(25*29*17 + $rand);
|
|
$salt .= $itoa64[$rand & $#itoa64];
|
|
}
|
|
warn "Salt is: $salt\n" if $verbose > 1;
|
|
|
|
return $salt;
|
|
}
|
|
|
|
|
|
# print banner
|
|
sub copyright {
|
|
return;
|
|
}
|
|
|
|
# hints
|
|
sub hints {
|
|
if ($verbose) {
|
|
print "Use option ``-silent'' if you don't want to see " .
|
|
"all warnings and questions.\n\n";
|
|
} else {
|
|
print "Use option ``-verbose'' if you want to see more warnings and " .
|
|
"questions \nor try to repair bugs.\n\n";
|
|
}
|
|
}
|
|
|
|
#
|
|
sub parse_arguments {
|
|
local(@argv) = @_;
|
|
|
|
while ($_ = $argv[0], /^-/) {
|
|
shift @argv;
|
|
last if /^--$/;
|
|
if (/^--?(v|verbose)$/) { $verbose = 1 }
|
|
elsif (/^--?(s|silent|q|quiet)$/) { $verbose = 0 }
|
|
elsif (/^--?(debug)$/) { $verbose = 2 }
|
|
elsif (/^--?(h|help|\?)$/) { &usage }
|
|
elsif (/^--?(home)$/) { $home = $argv[0]; shift @argv }
|
|
elsif (/^--?(shell)$/) { $defaultshell = $argv[0]; shift @argv }
|
|
elsif (/^--?(dotdir)$/) { $dotdir = $argv[0]; shift @argv }
|
|
elsif (/^--?(uid)$/) { $uid_start = $argv[0]; shift @argv }
|
|
elsif (/^--?(class)$/) { $defaultclass = $argv[0]; shift @argv }
|
|
elsif (/^--?(group)$/) { $defaultgroup = $argv[0]; shift @argv }
|
|
elsif (/^--?(check_only)$/) { $check_only = 1 }
|
|
elsif (/^--?(message)$/) { $send_message = $argv[0]; shift @argv;
|
|
$sendmessage = 1; }
|
|
elsif (/^--?(batch)$/) {
|
|
warn "The -batch option is not supported anymore.\n",
|
|
"Please use the pw(8) command line tool!\n";
|
|
exit(0);
|
|
}
|
|
# see &config_read
|
|
elsif (/^--?(config_create)$/) { &create_conf; }
|
|
elsif (/^--?(noconfig)$/) { $config_read = 0; }
|
|
else { &usage }
|
|
}
|
|
#&usage if $#argv < 0;
|
|
}
|
|
|
|
sub basename {
|
|
local($name) = @_;
|
|
$name =~ s|/+$||;
|
|
$name =~ s|.*/+||;
|
|
return $name;
|
|
}
|
|
|
|
sub dirname {
|
|
local($name) = @_;
|
|
$name = &stripdir($name);
|
|
$name =~ s|/+[^/]+$||;
|
|
$name = "/" unless $name; # dirname of / is /
|
|
return $name;
|
|
}
|
|
|
|
# return 1 if $file is a readable file or link
|
|
sub filetest {
|
|
local($file, $verb) = @_;
|
|
|
|
if (-e $file) {
|
|
if (-f $file || -l $file) {
|
|
return 1 if -r _;
|
|
warn "$file unreadable\n" if $verbose;
|
|
} else {
|
|
warn "$file is not a plain file or link\n" if $verbose;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
# create configuration files and exit
|
|
sub create_conf {
|
|
$create_conf = 1;
|
|
if ($send_message ne 'no') {
|
|
&message_create($send_message);
|
|
} else {
|
|
&message_create($send_message_bak);
|
|
}
|
|
&config_write(1);
|
|
exit(0);
|
|
}
|
|
|
|
# log for new user in /var/log/adduser
|
|
sub adduser_log {
|
|
local($string) = @_;
|
|
local($e);
|
|
|
|
return 1 if $logfile eq "no";
|
|
|
|
local($sec, $min, $hour, $mday, $mon, $year) = localtime;
|
|
$year += 1900;
|
|
$mon++;
|
|
|
|
foreach $e ('sec', 'min', 'hour', 'mday', 'mon', 'year') {
|
|
# '7' -> '07'
|
|
eval "\$$e = 0 . \$$e" if (eval "\$$e" < 10);
|
|
}
|
|
|
|
&append_file($logfile, "$year/$mon/$mday $hour:$min:$sec $string");
|
|
}
|
|
|
|
# create HOME directory, copy dotfiles from $dotdir to $HOME
|
|
sub home_create {
|
|
local($homedir, $name, $group) = @_;
|
|
local($rootdir);
|
|
|
|
if (-e "$homedir") {
|
|
warn "HOME Directory ``$homedir'' already exist\a\n";
|
|
return 0;
|
|
}
|
|
|
|
# if the home directory prefix doesn't exist, create it
|
|
# First, split the directory into a list; then remove the user's dir
|
|
@dir = split('/', $homedir); pop(@dir);
|
|
# Put back together & strip to get directory prefix
|
|
$rootdir = &stripdir(join('/', @dir));
|
|
|
|
if (!&mkdirhier("$rootdir")) {
|
|
# warn already displayed
|
|
return 0;
|
|
}
|
|
|
|
if ($dotdir eq 'no') {
|
|
if (!mkdir("$homedir", 0755)) {
|
|
warn "$dir: $!\n"; return 0;
|
|
}
|
|
system 'chown', "$name:$group", $homedir;
|
|
return !$?;
|
|
}
|
|
|
|
# copy files from $dotdir to $homedir
|
|
# rename 'dot.foo' files to '.foo'
|
|
print "Copy files from $dotdir to $homedir\n" if $verbose;
|
|
system("cp -R $dotdir $homedir");
|
|
system("chmod -R u+wrX,go-w $homedir");
|
|
system("chown -R $name:$group $homedir");
|
|
|
|
# security
|
|
opendir(D, $homedir);
|
|
foreach $file (readdir(D)) {
|
|
if ($file =~ /^dot\./ && -f "$homedir/$file") {
|
|
$file =~ s/^dot\././;
|
|
rename("$homedir/dot$file", "$homedir/$file");
|
|
}
|
|
chmod(0600, "$homedir/$file")
|
|
if ($file =~ /^\.(rhosts|Xauthority|kermrc|netrc)$/);
|
|
chmod(0700, "$homedir/$file")
|
|
if ($file =~ /^(Mail|prv|\.(iscreen|term))$/);
|
|
}
|
|
closedir D;
|
|
return 1;
|
|
}
|
|
|
|
# makes a directory hierarchy
|
|
sub mkdir_home {
|
|
local($dir) = @_;
|
|
$dir = &stripdir($dir);
|
|
local($user_partition) = "/usr";
|
|
local($dirname) = &dirname($dir);
|
|
|
|
-e $dirname || &mkdirhier($dirname);
|
|
|
|
if (((stat($dirname))[0]) == ((stat("/"))[0])){
|
|
# home partition is on root partition
|
|
# create home partition on $user_partition and make
|
|
# a symlink from $dir to $user_partition/`basename $dir`
|
|
# For instance: /home -> /usr/home
|
|
|
|
local($basename) = &basename($dir);
|
|
local($d) = "$user_partition/$basename";
|
|
|
|
|
|
if (-d $d) {
|
|
warn "Oops, $d already exist\n" if $verbose;
|
|
} else {
|
|
print "Create $d\n" if $verbose;
|
|
if (!mkdir("$d", 0755)) {
|
|
warn "$d: $!\a\n"; return 0;
|
|
}
|
|
}
|
|
|
|
unlink($dir); # symlink to nonexist file
|
|
print "Create symlink: $dir -> $d\n" if $verbose;
|
|
if (!symlink("$d", $dir)) {
|
|
warn "Symlink $d: $!\a\n"; return 0;
|
|
}
|
|
} else {
|
|
print "Create $dir\n" if $verbose;
|
|
if (!mkdir("$dir", 0755)) {
|
|
warn "Directory ``$dir'': $!\a\n"; return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
sub mkdirhier {
|
|
local($dir) = @_;
|
|
local($d,$p);
|
|
|
|
$dir = &stripdir($dir);
|
|
|
|
foreach $d (split('/', $dir)) {
|
|
$dir = "$p/$d";
|
|
$dir =~ s|^//|/|;
|
|
if (! -e "$dir") {
|
|
print "Create $dir\n" if $verbose;
|
|
if (!mkdir("$dir", 0755)) {
|
|
warn "$dir: $!\n"; return 0;
|
|
}
|
|
}
|
|
$p .= "/$d";
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
# stript unused '/'
|
|
# F.i.: //usr///home// -> /usr/home
|
|
sub stripdir {
|
|
local($dir) = @_;
|
|
|
|
$dir =~ s|/+|/|g; # delete double '/'
|
|
$dir =~ s|/$||; # delete '/' at end
|
|
return $dir if $dir ne "";
|
|
return '/';
|
|
}
|
|
|
|
# Read one of the elements from @list. $confirm is default.
|
|
# If !$allow accept only elements from @list.
|
|
sub confirm_list {
|
|
local($message, $allow, $confirm, @list) = @_;
|
|
local($read, $c, $print);
|
|
|
|
$print = "$message" if $message;
|
|
$print .= " " unless $message =~ /\n$/ || $#list == 0;
|
|
|
|
$print .= join($", &uniq(@list)); #"
|
|
$print .= " " unless $message =~ /\n$/ && $#list == 0;
|
|
print "$print";
|
|
print "\n" if (length($print) + length($confirm)) > 60;
|
|
print "[$confirm]: ";
|
|
|
|
chop($read = <STDIN>);
|
|
$read =~ s/^\s*//;
|
|
$read =~ s/\s*$//;
|
|
return $confirm if $read eq "";
|
|
return "$read" if $allow;
|
|
|
|
foreach $c (@list) {
|
|
return $read if $c eq $read;
|
|
}
|
|
warn "$read: is not allowed!\a\n";
|
|
return &confirm_list($message, $allow, $confirm, @list);
|
|
}
|
|
|
|
# YES or NO question
|
|
# return 1 if &confirm("message", "yes") and answer is yes
|
|
# or if &confirm("message", "no") an answer is no
|
|
# otherwise 0
|
|
sub confirm_yn {
|
|
local($message, $confirm) = @_;
|
|
local($yes) = '^(yes|YES|y|Y)$';
|
|
local($no) = '^(no|NO|n|N)$';
|
|
local($read, $c);
|
|
|
|
if ($confirm && ($confirm =~ "$yes" || $confirm == 1)) {
|
|
$confirm = "y";
|
|
} else {
|
|
$confirm = "n";
|
|
}
|
|
print "$message (y/n) [$confirm]: ";
|
|
chop($read = <STDIN>);
|
|
$read =~ s/^\s*//;
|
|
$read =~ s/\s*$//;
|
|
return 1 unless $read;
|
|
|
|
if (($confirm eq "y" && $read =~ "$yes") ||
|
|
($confirm eq "n" && $read =~ "$no")) {
|
|
return 1;
|
|
}
|
|
|
|
if ($read !~ "$yes" && $read !~ "$no") {
|
|
warn "Wrong value. Enter again!\a\n";
|
|
return &confirm_yn($message, $confirm);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
# test if $dotdir exist
|
|
# return "no" if $dotdir not exist or dotfiles should not copied
|
|
sub dotdir_default {
|
|
local($dir) = $dotdir;
|
|
|
|
return &dotdir_default_valid($dir) unless $verbose;
|
|
while($verbose) {
|
|
$dir = &confirm_list("Copy dotfiles from:", 1,
|
|
$dir, ("no", $dotdir_bak, $dir));
|
|
last if $dir eq &dotdir_default_valid($dir);
|
|
}
|
|
warn "Do not copy dotfiles.\n" if $verbose && $dir eq "no";
|
|
|
|
$changes++ if $dir ne $dotdir;
|
|
return $dir;
|
|
}
|
|
|
|
sub dotdir_default_valid {
|
|
local($dir) = @_;
|
|
|
|
return $dir if (-e $dir && -r _ && (-d _ || -l $dir) && $dir =~ "^/");
|
|
return $dir if $dir eq "no";
|
|
warn "Dotdir ``$dir'' is not a directory\a\n";
|
|
return "no";
|
|
}
|
|
|
|
# ask for messages to new users
|
|
sub message_default {
|
|
local($file) = $send_message;
|
|
local(@d) = ($file, $send_message_bak, "no");
|
|
|
|
while($verbose) {
|
|
$file = &confirm_list("Send message from file:", 1, $file, @d);
|
|
last if $file eq "no";
|
|
last if &filetest($file, 1);
|
|
|
|
# maybe create message file
|
|
&message_create($file) if &confirm_yn("Create ``$file''?", "yes");
|
|
last if &filetest($file, 0);
|
|
last if !&confirm_yn("File ``$file'' does not exist, try again?",
|
|
"yes");
|
|
}
|
|
|
|
if ($file eq "no" || !&filetest($file, 0)) {
|
|
warn "Do not send message\n" if $verbose;
|
|
$file = "no";
|
|
} else {
|
|
&message_read($file);
|
|
}
|
|
|
|
$changes++ if $file ne $send_message && $verbose;
|
|
return $file;
|
|
}
|
|
|
|
# create message file
|
|
sub message_create {
|
|
local($file) = @_;
|
|
|
|
rename($file, "$file.bak");
|
|
if (!open(M, "> $file")) {
|
|
warn "Messagefile ``$file'': $!\n"; return 0;
|
|
}
|
|
print M <<EOF;
|
|
#
|
|
# Message file for adduser(8)
|
|
# comment: ``#''
|
|
# default variables: \$name, \$fullname, \$password
|
|
# other variables: see /etc/adduser.conf after
|
|
# line ``$do_not_delete''
|
|
#
|
|
|
|
\$fullname,
|
|
|
|
your account ``\$name'' was created.
|
|
Have fun!
|
|
|
|
See also chpass(1), finger(1), passwd(1)
|
|
EOF
|
|
close M;
|
|
return 1;
|
|
}
|
|
|
|
# read message file into buffer
|
|
sub message_read {
|
|
local($file) = @_;
|
|
@message_buffer = '';
|
|
|
|
if (!open(R, "$file")) {
|
|
warn "File ``$file'':$!\n"; return 0;
|
|
}
|
|
while(<R>) {
|
|
push(@message_buffer, $_) unless /^\s*#/;
|
|
}
|
|
close R;
|
|
}
|
|
|
|
# write @list to $file with file-locking
|
|
sub append_file {
|
|
local($file,@list) = @_;
|
|
local($e);
|
|
local($LOCK_EX) = 2;
|
|
local($LOCK_NB) = 4;
|
|
local($LOCK_UN) = 8;
|
|
|
|
open(F, ">> $file") || die "$file: $!\n";
|
|
print "Lock $file.\n" if $verbose > 1;
|
|
while(!flock(F, $LOCK_EX | $LOCK_NB)) {
|
|
warn "Cannot lock file: $file\a\n";
|
|
die "Sorry, give up\n"
|
|
unless &confirm_yn("Try again?", "yes");
|
|
}
|
|
print F join("\n", @list) . "\n";
|
|
close F;
|
|
print "Unlock $file.\n" if $verbose > 1;
|
|
flock(F, $LOCK_UN);
|
|
}
|
|
|
|
# return free uid+gid
|
|
# uid == gid if possible
|
|
sub next_id {
|
|
local($group) = @_;
|
|
|
|
$uid_start = 1000 if ($uid_start <= 0 || $uid_start >= $uid_end);
|
|
# looking for next free uid
|
|
while($uid{$uid_start}) {
|
|
$uid_start++;
|
|
$uid_start = 1000 if $uid_start >= $uid_end;
|
|
print "$uid_start\n" if $verbose > 1;
|
|
}
|
|
|
|
local($gid_start) = $uid_start;
|
|
# group for user (username==groupname) already exist
|
|
if ($groupname{$group}) {
|
|
$gid_start = $groupname{$group};
|
|
}
|
|
# gid is in use, looking for another gid.
|
|
# Note: uid an gid are not equal
|
|
elsif ($gid{$uid_start}) {
|
|
while($gid{$gid_start} || $uid{$gid_start}) {
|
|
$gid_start--;
|
|
$gid_start = $uid_end if $gid_start < 100;
|
|
}
|
|
}
|
|
return ($uid_start, $gid_start);
|
|
}
|
|
|
|
# read config file
|
|
sub config_read {
|
|
local($opt) = @_;
|
|
local($user_flag) = 0;
|
|
|
|
# don't read config file
|
|
return 1 if $opt =~ /-(noconfig|config_create)/ || !$config_read;
|
|
|
|
if(!open(C, "$config")) {
|
|
warn "$config: $!\n"; return 0;
|
|
}
|
|
|
|
while(<C>) {
|
|
# user defined variables
|
|
/^$do_not_delete/ && $user_flag++;
|
|
# found @array or $variable
|
|
if (s/^(\w+\s*=\s*\()/\@$1/ || s/^(\w+\s*=)/\$$1/) {
|
|
eval $_;
|
|
#warn "$_";
|
|
}
|
|
# lines with '^##' are not saved
|
|
push(@user_variable_list, $_)
|
|
if $user_flag && !/^##/ && (s/^[\$\@]// || /^[#\s]/);
|
|
}
|
|
#warn "X @user_variable_list X\n";
|
|
close C;
|
|
}
|
|
|
|
|
|
# write config file
|
|
sub config_write {
|
|
local($silent) = @_;
|
|
|
|
# nothing to do
|
|
return 1 unless ($changes || ! -e $config || !$config_read || $silent);
|
|
|
|
if (!$silent) {
|
|
if (-e $config) {
|
|
return 1 if &confirm_yn("\nWrite your changes to $config?", "no");
|
|
} else {
|
|
return 1 unless
|
|
&confirm_yn("\nWrite your configuration to $config?", "yes");
|
|
}
|
|
}
|
|
|
|
rename($config, "$config.bak");
|
|
open(C, "> $config") || die "$config: $!\n";
|
|
|
|
# prepare some variables
|
|
$send_message = "no" unless $send_message;
|
|
$defaultpasswd = "no" unless $defaultpasswd;
|
|
local($shpref) = "'" . join("', '", @shellpref) . "'";
|
|
local($shpath) = "'" . join("', '", @path) . "'";
|
|
local($user_var) = join('', @user_variable_list);
|
|
|
|
print C <<EOF;
|
|
#
|
|
# $config - automatic generated by adduser(8)
|
|
#
|
|
# Note: adduser read *and* write this file.
|
|
# You may change values, but don't add new things before the
|
|
# line ``$do_not_delete''
|
|
#
|
|
|
|
# verbose = [0-2]
|
|
verbose = $verbose
|
|
|
|
# use password for new users
|
|
# defaultpasswd = yes | no
|
|
defaultpasswd = $defaultpasswd
|
|
|
|
# copy dotfiles from this dir ("/usr/share/skel" or "no")
|
|
dotdir = "$dotdir"
|
|
|
|
# send this file to new user ("/etc/adduser.message" or "no")
|
|
send_message = "$send_message"
|
|
|
|
# config file for adduser ("/etc/adduser.conf")
|
|
config = "$config"
|
|
|
|
# logfile ("/var/log/adduser" or "no")
|
|
logfile = "$logfile"
|
|
|
|
# default HOME directory ("/home")
|
|
home = "$home"
|
|
|
|
# List of directories where shells located
|
|
# path = ('/bin', '/usr/bin', '/usr/local/bin')
|
|
path = ($shpath)
|
|
|
|
# common shell list, first element has higher priority
|
|
# shellpref = ('bash', 'tcsh', 'ksh', 'csh', 'sh')
|
|
shellpref = ($shpref)
|
|
|
|
# defaultshell if not empty ("bash")
|
|
defaultshell = "$defaultshell"
|
|
|
|
# defaultgroup ('USER' for same as username or any other valid group)
|
|
defaultgroup = $defaultgroup
|
|
|
|
# defaultclass if not empty
|
|
defaultclass = "$defaultclass"
|
|
|
|
# new users get this uid (1000)
|
|
uid_start = "$uid_start"
|
|
|
|
$do_not_delete
|
|
## your own variables, see /etc/adduser.message
|
|
$user_var
|
|
|
|
## end
|
|
EOF
|
|
close C;
|
|
}
|
|
|
|
################
|
|
# main
|
|
#
|
|
$test = 0; # test mode, only for development
|
|
$check_only = 0;
|
|
|
|
&check_root; # you must be root to run this script!
|
|
&variables; # initialize variables
|
|
&config_read(@ARGV); # read variables form config-file
|
|
&parse_arguments(@ARGV); # parse arguments
|
|
|
|
if (!$check_only) {
|
|
©right; &hints;
|
|
}
|
|
|
|
# check
|
|
$changes = 0;
|
|
&passwd_check; # check for valid passwdb
|
|
&shells_read; # read /etc/shells
|
|
&passwd_read; # read /etc/master.passwd
|
|
&group_read; # read /etc/group
|
|
&group_check; # check for incon*
|
|
exit 0 if $check_only; # only check consistence and exit
|
|
|
|
|
|
# interactive
|
|
# some questions
|
|
&shells_add; # maybe add some new shells
|
|
$defaultshell = &shell_default; # enter default shell
|
|
$home = &home_partition($home); # find HOME partition
|
|
$dotdir = &dotdir_default; # check $dotdir
|
|
$send_message = &message_default; # send message to new user
|
|
$defaultpasswd = &password_default; # maybe use password
|
|
&config_write(!$verbose); # write variables in file
|
|
|
|
# main loop for creating new users
|
|
&new_users; # add new users
|
|
|
|
#end
|